Number of nX4 arrays of occupancy after each element stays put or moves to some king-move neighbor, without move-in move-out straight through or left turns.
A221924
Number of nX4 arrays of occupancy after each element stays put or moves to some king-move neighbor, without move-in move-out straight through or left turns.
Terms
- a(0) =13a(1) =3487a(2) =508281a(3) =75313013a(4) =11143187999
External references
- oeis: A221924